Iain Stewart Elections contested
Parliament Member page for Iain Stewart
Elections listed as contested and won are those forming part of the general elections in 2010, 2015, 2017, 2019 or 2024 and any by-election contested during the 58th Parliament. A person may have contested an election outside this grouping.
| Election | Constituency | Election type | Party | Vote count | Vote share | Position |
| 4 July 2024 | Buckingham and Bletchley | General election | Con | 15,181 | 31.9% | 2nd |
| 12 December 2019 | Milton Keynes South | General election | Con | 32,011 | 50.0% | 1st |
| 8 June 2017 | Milton Keynes South | General election | Con | 30,652 | 47.5% | 1st |
| 7 May 2015 | Milton Keynes South | General election | Con | 27,601 | 46.8% | 1st |
| 6 May 2010 | Milton Keynes South | General election | Con | 23,034 | 41.6% | 1st |